An illustration conveying the idea of a space-based quantum internet, which would seem, like the hypothetical particle of a tachyon, to outpace light. An illustration ...

The constancy of the speed of light is a pillar of modern physics, but questions persist about its absolute universality.

GENEVA -- A pillar of physics -- that nothing can go faster than the speed of light -- appears to be smashed by an oddball subatomic particle that has apparently made a giant end run around Albert ...

Quick, pick a side: Is light a wave or a particle? This question is best known for its power to set crowds of undergraduates a-tittering. But it’s more than a pop science brain-teaser. Scott Holmstrom ...

Shini introduces the idea of Quantum Mechanics and how it helps us understand light. What is light? That is something that has plagued scientists for centuries. It behaves light a wave... and a ...

Ever since Democritus – a Greek philosopher who lived between the 5th and 4th century's BCE – argued that all of existence was made up of tiny indivisible atoms, scientists have been speculating as to ...

GENEVA (AP) — One of the very pillars of physics and Einstein’s theory of relativity — that nothing can go faster than the speed of light — was rocked Thursday by new findings from one of the world’s ...

The speed of light is constant, or so textbooks say. But some scientists are exploring the possibility that this cosmic speed limit changes, a consequence of the nature of the vacuum of space. The ...

Interactions between tiny particles trapped in light are found to differ, depending on the light's shape, report scientists. Physical phenomena, such as particle behavior in higher order modes not ...